Accessibility in Blazor Rating component

15 Apr 20244 minutes to read

The Blazor Rating component followed the accessibility guidelines and standards, including ADA, Section 508, WCAG 2.2 standards, and WCAG roles that are commonly used to evaluate accessibility.

The accessibility compliance for the Blazor Rating component is outlined below.

Accessibility Criteria Compatibility
WCAG 2.2 Support Yes
Section 508 Support Yes
Screen Reader Support Yes
Right-To-Left Support Yes
Color Contrast Yes
Mobile Device Support Yes
Keyboard Navigation Support Yes
Axe-core Accessibility Validation Yes
Yes - All features of the component meet the requirement.
Intermediate - Some features of the component do not meet the requirement.
No - The component does not meet the requirement.

WAI-ARIA attributes

The Blazor Rating component followed the WAI-ARIA patterns to meet the accessibility. The following ARIA attributes are used in the Blazor Rating component:

Attributes Purpose
role=slider It defines an input where the user selects a value from within a specified range.
role=button Specifies that the reset is a clickable element that resets the rating to its minimum value.
aria-label Provides an accessible name for Rating.
aria-valuemin It defines the minimum value of rating.
aria-valuemax It defines the maximum value of rating.
aria-valuenow It defines the current value of rating.
aria-hidden It specifies whether the reset button is interactive or not.

Keyboard interaction

The Blazor Rating component followed the keyboard interaction guideline, making it easy for people who use assistive technologies (AT) and those who completely rely on keyboard navigation. The following keyboard shortcuts are supported by the Blazor Rating component.

Keyboard shortcuts Actions
Space When Reset Button is focused, resets to min value.
Arrow Up Increases the value.
Arrow Left Decreases the value; in RTL mode, increases the value.
Arrow Down Decreases the value.
Arrow Right Increases the value; in RTL mode, decreases the value.

Ensuring accessibility

The Blazor Rating component’s accessibility levels are ensured through an axe-core with playwright tests.

The accessibility compliance of the Blazor Rating component is shown in the following sample. Open the sample in a new window to evaluate the accessibility of the Blazor Rating component with accessibility tools.

See also